Reverse-movement attachment for type-writing machines



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I H. 0. HOOPER. EEvEEsE MOVEMENT ATTACHMENT EoE TYPE WRITING MACHINES. No. 446,406. Patented Jan. 27, 1891.

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H. 0. HOOPER, REVERSE MOVEMENT ATTACHMENT FOR TYPE WRITINGMAGHINES.

No; 445,406. Patented. Jan. 27,1891.

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UNITED STATES PATENT FFICE.

HENRY O. I-IOOPER, -OF SAN FRANCISCO, CALIFORNIA.

REVERSE-MOVEMENT ATTACHMENT FOR TYPE-WRITING MACHINES.

SPECIFICATION forming part of Letters Patent No. 445,406, dated January 27, 1891.

Application filed July 25,1890. Serial No. 359,902. (No model.)

To all whom it may concern:

Be it known that I, HENRY O. HooPER, a citizen of the UnitedStates,residing at the city and in the county of San Francisco and State of California, have invented certain new and useful Improvements in Reverse-Movement Attachments for Type-WritingMachines and I do hereby declare the following to be afull, clear,and exact description of saidinvention, such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

My invention has relation to certain new and useful improvements in typewriter attachments; and it consists of the parts and and details of construction, as will be hereinafter more fully set forth in the drawings, described, and pointed out in the specification.

The object of my invention consists in pro viding suitable mechanism whereby the typewriter carriage may be automatically returned after completing its travel, and at the same time the roll caused to be revolved the distance of one line by means of the operators foot or knee, thereby obviating the delay and annoyance of having after completion of each line to raise the carriage-lift and draw the carriage by hand.

Referring to the drawings forming a part of thisspecification,wherein similar letters of reference are used to denote corresponding parts throughout the entire specification and several views, Figure 1 is a front view in elevation, partly broken away for the purpose of more fully showing the arrangement of parts; Fig. 2, a top plan view; Fig. 3, a detail view; Fig. 4:, a modification of mechanism shown in Fig. 1; Fig. 5, a top plan in cross-section, and Fig. 6

an end view showing attachment to carriage .revolves the roll one space or line.

ported by rod I). Said chain or cord passes under pulley b", mounted upon the carriage frame 0, and the free end thereof is secured to the spring metallic bar O,which is secured to the hand-lift B.

The lever A is downwardly curved and provided with the foot-piece 0, so as to en able the same to be operated by means of the operators foot. Said lever is also connected to the frame O by means of the spring 6, which serves to maintain the same ina raised position when pressure is released therefrom, and, as herei uafter more fully explained, serve to throw or bring lever A into normal position. If so desired, however, the two levers may be connected directly by means of spring 6.

It will be observed by reference to Fig. 1 that lever A projects laterally from frame 0 and is maintained in position by spring 6; but if so desired the same may be inserted from the bottom of the frame and project downward therefrom and spring c be dispensed with. In this case I provide the laterally-extending weighted arm D, which is pivotally secured to the frame, and has its inner end notched in order to engage with the teeth cl, formed in the enlarged portion a of lever A In order to limit the lateral play of the downwardly-extending lever A I provide the stop (1. To said lever I secure the knee-piece D, which is made adjustable through the medium of set-screw d Y The operation of my device is as follows: As the carriage travels laterally, the slack of cord or chain 1) is gradually taken up until the carriage has traveled the width of the type-writer. In order to bring the same to the opposite side, the operator presses downward upon the foot-piece c of lever A which necessarily causes the same to make a partial revolution. Inasmuch as the teeth (I mesh with teeth 0' of lever A, itis obvious that such partial revolution causes the outward throw thereof. \Vith such movement of the lever A the chain or cord pulls down upon the metallic rod O, and inasmuch as the same is secured to handle 13 causes the upward lift thereof, which through its usual connection As the levcrA is thrown outward the carriage, through the medium of the described connection, is carried laterally to the position shown in Fig. 1. I have shown in Fig. 4: in dotted lines the position assumed by lever A when thrown outward. Upon releasing the pressure upon the foot-piece the resiliency of spring 6 causes the upward movement of lever A which necessarily causes the lever A to move in an opposite direction until brought into position shown in Fig. 1. When it is desired to use i the knee in operating the device, I use the form of connection shown in Fig. 4. By lateral pressure upon knee-piece D the lever A is thrown to position shown by dotted lines, while lever A with such movement assumes position indicated by dotted line and likewise with weighted arm D. Upon removing the knee from contact with piece D the weigh ted lever, acting upon lever A, which in turn acts upon lever A causes the levers to assume position shown in full lines.

I am aware that minor changes may be made in the arrangement of parts and details of construction herein shown and described without creating or necessitating a departure from the nature and scope of my invention.

Having thus described my invention, what I claim as new, and desire to secure protection in by Letters Patent of the United States, is

1. In a type-writer attachment, the combination of a lever pivoted to the table and extending beneath the same, means for operating said lever, a laterally-extending eyed rod secured to the upper end of the lever, a pulley mounted upon the carriage frame, a spring metallic bar secured to the hand-lift of the machine, and a cord secured to the rear of spring metallic bar, thence passing beneath the pulley, through the eye of the laterallyextending arm, and finally secured to the upper end of the operating-lever, substantially as set forth.

2. In a type-writer attachment, the combination of a lever pivoted to the table of the machine, having its inner end enlarged and toothed and its outer end extending downwardly so as to be manipulated by the operators foot or limb, a second lever pivoted to the table and also provided with an enlarged toothed inner end meshing with the corresponding end of the other lever, a spring-bar secured to the hand-lift of the machine, and a cord connecting the rear end of the spring with the end of the upper lever and adapted to move the carriage laterally to the right and to partly rotate the roll or platen, substantially as set forth.

3. In a type-writer attachment, the combination of a lever pivoted to the table of the machine, having its inner end enlarged and toothed and its outer end extending downwardly so as to be manipulated by the operators foot or limb, a laterally-extending pivoted arm having its outer end weighted and its inner end notched to engage the teeth of the lever, an upwardly-extending lever pivoted to the table and also provided with an enlarged toothed inner end meshing withthe corresponding end of the other lever, a springbar secured to the hand-lift of the machine, and a cord connecting the rear end of said bar with the end of the upper lever and adapted to move the carriage laterally to the right and to partly rotate the roll or platen, substantially as set forth.

t. In a type-writer attachment, the combination of a lever pivoted to the table of the machine, having its inner end enlarged and toothed and its outer end extending downwardly so as to be manipulated by the operators foot or limb, a second lever pivoted to the table and also provided with an enlarged toothed inner end meshing with the corresponding end of the other lever, a spring-bar secured to the hand lift of the machine, a cord connecting the rear end of said bar with the rear end of the upper lever and adapted to move the carriage laterally to the right and to partly rotate the roll or platen, and a stop for limiting the downward play of the down wardly-extendin g lever, substantially as set forth.

5. In a type-writer attachment, the combi-- nation of a casing secured to the table of the machine, a lever pix oted therein, having its inner end enlarged and toothed and its outer end extending from the casing so as to be manipulated by the operators foot or limb, a

second lever pivoted within the casing and also provided with an enlarged toothed inner end meshing with the corresponding end of the other lever, a spring-bar secured to the hand-lift of the machine, a cord connecting the rear end of the spring with the end of the upper lever and adapted to move the carriage laterallyto the right and to partly rotate the roll or platen, a spring within the casin g, having one end connected thereto and the other end connected to the downwardlyextending lever, and a stop formed within the casing forlimiting the play of said downwardly-extending lever, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

HENRY O. I'IOOPER.

Witnesses:

N. A. AOKER, O. J. ARMBRUSTER. 

